body {
    margin: 0;
    padding: 0;
    font-family: Verdana, sans-serif;
    background: lightsteelblue;
}

#drawing-container {
    border: 1px solid black;
    border-radius: 15px;
    max-width: 900px;
    margin: 1em auto;
    background-color: white;
    text-align: center
}

#toolbar {
    padding-bottom: 1.5em;
    margin: auto;
    text-align: center;
    
}

#toolbar > input {
    width: 50px;
    margin: 0 10px
}

#canvas-container{
    border-top: 1px dashed black;
}